Basic Chemistry
The number of atoms for each element in H2O.
What is H = 2 and O = 1?
Draw the Lewis Dot Diagram for N2.
What is N with 5 dots each and a triple bond?
The density of water.
What is 1 g/mL?
The state of matter that has a fixed volume, but takes the shape of the container.
What is a liquid?
Collecting temperatures and graphing are examples of this type of data.
What is glucose?
The name for the ions in ionic bonding that receive a positive charge because they donate electrons.
What are cations?
The solute in salt water.
What is salt?
Diagonal lines on a phase change graph mean this
What is the current state of the substance?
The two examples of pure substances.
What are elements and compounds?
A molecule that is not also a compound.
What is H2, O2, etc.?
The number of atoms in 3(CH3COOH).
What is C = 6, H = 12, and O = 6?
Solutions are this type of mixture.
What are homogeneous?
This causes a change in state
What is an increase in temperature, kinetic energy, or particle motion?
Sodium and chlorine form this type of bond.
What is ionic?
The bond that is formed between two nonmetals.
The chemical formula for Al bonded with O.
What is Al2O3?
The reasoning as to WHY things dissolve faster in hotter temperatures.
What is faster particle motion and greater kinetic energy?
The science/reasoning as to how thermometers work
What is an increase in temperature causes the mercury to expand and rise?
The chemical formula for rust.
What is Fe2O3?
The chemical formula for 5 molecules of water.
What is 5H2O?
Draw the Lewis Dot Diagram for Al2S3.
What is 2[Al]3+ 3[S]2-?
The density of a gold wedding ring with a mass of 38 grams that when placed in 20 mL of water, the water level rises to 22 mL.
What is 19 g/mL?
The science/reasoning as to how boiling water shows convection currents AND density
What is heat causes things to rise and become less dense, and then they cool off and become denser and sink?
Bill Nye tests different methods of melting ice on his driveway. He decides to compare salt, sugar, and sand to see which substance will melt the ice the fastest. He completes his experiment and creates a graph.
Name the IV, DV, and title for the graph.
IV - What is the type of substance/method?
DV - What is the melting time?
Title - What is Melting Time vs. Method?